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CN110397014A - A kind of multifunction micro static sounding feeler lever - Google Patents

A kind of multifunction micro static sounding feeler lever Download PDF

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Publication number
CN110397014A
CN110397014A CN201910614225.9A CN201910614225A CN110397014A CN 110397014 A CN110397014 A CN 110397014A CN 201910614225 A CN201910614225 A CN 201910614225A CN 110397014 A CN110397014 A CN 110397014A
Authority
CN
China
Prior art keywords
probe
connecting rod
drag ring
top plate
feeler lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910614225.9A
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Chinese (zh)
Inventor
董宏季
王乐
张浦阳
丁红岩
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Tianjin University
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Tianjin University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201910614225.9A priority Critical patent/CN110397014A/en
Publication of CN110397014A publication Critical patent/CN110397014A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00Investigation of foundation soil in situ

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention belongs to geotechnical engineering soil investigation, soil exploration fields, disclose a kind of multifunction micro static sounding feeler lever, including sequentially connected probe from bottom to top, connecting rod and connection top plate, probe is conical probe, cylindrical probe or anti-drag ring probe, anti-drag ring probe therein includes anti-drag ring, and anti-drag ring is the truncated conical shape that basal diameter is less than top surface diameter;Connecting rod and probe, connecting rod and connect top plate and be attached by miniature pull pressure sensor, and pop one's head in, connecting rod, connection top plate are not directly contacted with.The present invention can suitably pop one's head in the most according to choosing the case where the interaction of different soil property and structure and the soil body, and detect end resistance and frictional resistance two parts simultaneously in entire penetration process, connection top plate can also carry out accurate Level-adjusting, thus the stress situation of change in the installation process of the different soil properties of understanding and different structure object that keep the present apparatus relatively sharp.

Description

A kind of multifunction micro static sounding feeler lever
Technical field
The invention belongs to geotechnical engineering soil investigation, soil exploration field, in particular in the case of a kind of difference soil property and Multifunction micro static sounding feeler lever under different structure form.
Background technique
In order to meet the demand for development of human society, more and more civil engineering projects are built all over the world. For the reliability of accurate judgement basis design, the survey of early period is with regard to particularly significant, and static sounding is survey In most commonly used one of prospecting mode.But due to the complexity of truth, conventional static cone penetration equipment is tended not to The accurately interaction relationship between the true soil property situation and the soil body and works at reaction scene, especially sea turn Electrical engineering, accurate surveys are most important for the Security Construction of engineering.In order to which foregoing relate to arrive for more accurate solution The problem of, and need to propose a kind of static sounding device for being more suitable for actual conditions.
Summary of the invention
The present invention is directed to the bases according to conventional chambers test flume size, propose a kind of suitable for common indoor model test Multifunction micro static sounding feeler lever.At the same time, for the more accurate various forms of works of reaction and different soil The interaction relationship of the soil body of matter, present invention employs different probes and in the multiple miniature pressures of connecting rod positioned inside Sensor, thus the frictional resistance of the end resistance and feeler lever itself of measuring probe end simultaneously, so that the precision of experiment is improved, for more It lays the foundation for the research of refinement.
In order to solve the above-mentioned technical problem, the present invention is achieved by technical solution below:
A kind of multifunction micro static sounding feeler lever, it is described including popping one's head in and being connected to the connecting rod on the probe Probe is conical probe, cylindrical probe or anti-drag ring probe, and the anti-drag ring probe includes anti-drag ring, and the anti-drag ring is bottom Face diameter is less than the truncated conical shape of top surface diameter;Connection top plate is connected on the connecting rod;
The connecting rod and the probe, the connecting rod and the connection top plate by miniature pull pressure sensor into Row connection, and the probe, the connecting rod, the connection top plate are not directly contacted with.
Further, the diameter of the cylindrical probe is 10~40mm, and length is 40~400mm.
Further, the connection shank diameter that the top surface diameter of the anti-drag ring is 110%~180%, the drag reduction Angle between the side and vertical direction of ring is 10 °~45 °.
Further, the length of the connecting rod is 50-200cm.
Further, the equally distributed wire hole being provided with for connecting loading device and leveling of the connection top plate.
The beneficial effects of the present invention are:
The present invention devises a kind of novel multifunction micro static sounding feeler lever, which can be according to different soil properties And structure and the soil body interaction the case where choose probe the most suitable, the anti-drag ring probe of wherein innovative design, especially It is applicable in the installation biggish structure of resistance, and anti-drag ring changes the damage of soil body mode in sinking watching, significantly reduces Frictional resistance, and then reduce the drag overall of structure sinking, by adjusting drag reduction top surface of ring diameter and tilt angle, it can test out and subtract Hinder the optimal drag reduction loop type of effect.In addition, the device can detect simultaneously end resistance and frictional resistance in entire penetration process Two parts, and connect top plate and can carry out accurate Level-adjusting, ensure that the vertical degree of feeler lever to ensure test accuracy, To the stress situation of change in the installation process of the relatively sharp different soil properties of understanding and different structure object, provided for design More reasonable directive function.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of multifunction micro static sounding feeler lever provided by the present invention;
Fig. 2 is the structural schematic diagram of conical probe;Wherein (a) is main view;It (b) is top view;
Fig. 3 is the structural schematic diagram of cylindrical probe;Wherein (a) is main view;It (b) is top view;It (c) is side view;
Fig. 4 is the structural schematic diagram of anti-drag ring probe;Wherein (a) is main view;It (b) is top view;
Fig. 5 is the structural schematic diagram for connecting top plate;Wherein (a) is main view;It (b) is bottom view.
In above-mentioned figure: 1, popping one's head in;2, connecting rod;3, feeler lever is connected.
Specific embodiment
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed It is described as follows:
As shown in Figure 1, a kind of multifunction micro static sounding feeler lever is present embodiments provided, by 1,2 and of connecting rod of popping one's head in 3 three parts of top plate are connected to constitute.
According to different depths of penetration, different soil property situations and different works situations, probe 1 amount to and are set as three Kind form.1 top surface of probe of three kinds of forms process it is fluted, and in groove internal tapping, for placing and connecting miniature tension and compression Force snesor.
As shown in Fig. 2, the first probe 1 is popped one's head in for Conventional cone, the conehead angle of conical probe is 60 °.Conical probe Mainly for the indoor model test carried out in sandy soil and silt, corresponding many specifications also proposed corresponding soil parameter Corresponding penetration resistance.
As shown in figure 3, second of probe 1 is cylindrical probe (being commonly called as T-bar), it, should including horizontal positioned cylindrical body The diameter of cylindrical body is consistent with the diameter of connecting rod 2, length 60mm.The diameter of cylindrical probe can be in 10~40mm range It is inside selected, length can be selected within the scope of 40~400mm.Cylindrical probe is suitable for carrying out cohesive soil Indoor model test, the Theory Solution for the penetration resistance being subject in corresponding penetration process have also been applied by many specifications.
The third probe 3 is popped one's head in for anti-drag ring, including interconnecting piece more than anti-drag ring and anti-drag ring, on interconnecting piece is generally Portion is provided with the cylindrical body of tapped blind hole, and anti-drag ring is the truncated conical shape that basal diameter is less than top surface diameter, the top surface of anti-drag ring Diameter generally selects in 110%~180% 2 diameter range of connecting rod, the angle between anti-drag ring side and vertical direction Generally selected within the scope of 10 °~45 °.Anti-drag ring probe is a kind of probe type of brand-new design, under anti-drag ring can change Damage of soil body mode during heavy greatly reduces frictional resistance, and then reduces the drag overall of feeler lever injection, changes anti-drag ring top Face diameter and tilt angle, by the measurement data of upper and lower two miniature pull pressure sensor, available end resistance and frictional resistance Power changing rule.Therefore the probe more can really react the stress condition in the installation process of drag reduction structures object.
Connecting rod 2 is the hollow thin-wall steel pipe of both ends perforation, and the diameter of connecting rod 2 is according to existing minimum dimension Depending on penetration resistance value listed by the size of miniature pull pressure sensor and corresponding specification, such as internal diameter can be selected and be 10mm, outer diameter 12mm, length 60cm.In general, the length of connecting rod 2 is 50-200cm.Distinguish at the both ends of connecting rod 2 The groove that a depth is 1mm is processed, while in the groove internal tapping of connecting rod 2, for placing and connecting miniature pressure sensing Device.
As shown in figure 4, connection top plate 3 includes a square slab construction and the company that the slab construction lower part is arranged in Socket part, the processing of interconnecting piece bottom surface is fluted, and in groove internal tapping, for placing and connecting miniature pull pressure sensor.Connection Four wire holes are respectively set in four corners in the square plate structure of top plate 3, thus facilitate the connection corresponding loading device in top, And accurate Level-adjusting can be carried out, ensure that the vertical degree of feeler lever to ensure test accuracy.
Connecting rod 2 is attached with probe 1 by internal miniature pull pressure sensor, and is not directly contacted with, thus really Protecting the resistance that conehead is subject to is only end resistance.Connecting rod 2 equally passes through internal miniature pull pressure sensor with top plate 3 is connect It is attached, connecting rod 2 is not directly contacted with top plate 3 is connect, and can make that miniature pull pressure sensor measures in this way is probe 1 And the drag overall that connecting rod 2 is subject to.Connecting rod 2 is punched in the position at connection top plate 3, by two miniature pressures The connecting line of sensor is drawn by connecting rod 2, to guarantee the effective length of measurement range, prevents interference of the conducting wire to the soil body. Unremitting measurement end resistance and drag overall in penetration process, so that inverse goes out the frictional resistance that connecting rod 2 is subject to, The sensor of middle bottom can measure end resistance in time, and top sensor can measure drag overall, frictional resistance by the two difference It is calculated.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common Technical staff under the inspiration of the present invention, can be with when not departing from invention objective and scope of the claimed protection The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.

Claims (5)

1. a kind of multifunction micro static sounding feeler lever, including popping one's head in and being connected to the connecting rod on the probe, feature It is, the probe is conical probe, cylindrical probe or anti-drag ring probe, and the anti-drag ring probe includes anti-drag ring, described Anti-drag ring is the truncated conical shape that basal diameter is less than top surface diameter;Connection top plate is connected on the connecting rod;
The connecting rod is connected by miniature pull pressure sensor with the probe, the connecting rod with the connection top plate It connects, and the probe, the connecting rod, the connection top plate are not directly contacted with.
2. a kind of multifunction micro static sounding feeler lever according to claim 1, which is characterized in that the cylindrical probe Diameter be 10~40mm, length be 40~400mm.
3. a kind of multifunction micro static sounding feeler lever according to claim 1, which is characterized in that the top of the anti-drag ring The connection shank diameter that face diameter is 110%~180%, the angle between the side and vertical direction of the anti-drag ring are 10 °~45 °.
4. a kind of multifunction micro static sounding feeler lever according to claim 1, which is characterized in that the length of the connecting rod Degree is 50-200cm.
5. a kind of multifunction micro static sounding feeler lever according to claim 1, which is characterized in that the connection top plate is equal The wire hole of even distribution being provided with for connecting loading device and leveling.
CN201910614225.9A 2019-07-09 2019-07-09 A kind of multifunction micro static sounding feeler lever Pending CN110397014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910614225.9A CN110397014A (en) 2019-07-09 2019-07-09 A kind of multifunction micro static sounding feeler lever

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Application Number Priority Date Filing Date Title
CN201910614225.9A CN110397014A (en) 2019-07-09 2019-07-09 A kind of multifunction micro static sounding feeler lever

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114658043A (en) * 2022-03-07 2022-06-24 中国电建集团华东勘测设计研究院有限公司 Pile-soil horizontal static load interaction analysis method based on T-bar p-y curve
CN115217085A (en) * 2022-07-23 2022-10-21 镇江市勘察测绘研究院有限公司 Static sounding device and static sounding test method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359914A (en) * 2011-07-11 2012-02-22 湖南大学 Vehicle-mounted determinator for rapid detection of roadbed compactness
CN107542077A (en) * 2017-09-04 2018-01-05 哈尔滨工业大学深圳研究生院 A kind of static sounding probe of non-hollow structure
CN210621663U (en) * 2019-07-09 2020-05-26 天津大学 Multifunctional miniature static sounding probe rod

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359914A (en) * 2011-07-11 2012-02-22 湖南大学 Vehicle-mounted determinator for rapid detection of roadbed compactness
CN107542077A (en) * 2017-09-04 2018-01-05 哈尔滨工业大学深圳研究生院 A kind of static sounding probe of non-hollow structure
CN210621663U (en) * 2019-07-09 2020-05-26 天津大学 Multifunctional miniature static sounding probe rod

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114658043A (en) * 2022-03-07 2022-06-24 中国电建集团华东勘测设计研究院有限公司 Pile-soil horizontal static load interaction analysis method based on T-bar p-y curve
CN115217085A (en) * 2022-07-23 2022-10-21 镇江市勘察测绘研究院有限公司 Static sounding device and static sounding test method
CN115217085B (en) * 2022-07-23 2024-04-26 镇江市勘察测绘研究院有限公司 Static cone penetration test device and static cone penetration test method

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